Island



(No Mdel.) l

' S. B. COMSTOCK.

ADJUSTABLE SLIDING' SGREBN.

Patented June 14, 1887.

N( PETERS. PMib-Lmmer. Wnhlngiorl. D. C.

UNITED STATES- 4PATENT Ormes.

SYLVESTER B. OOMSTOOK, OF PROVIDENCE, RHODE ISLAND.

ADJUSTABLE SLIDING SCREEN.

SPECIFICATION forming part of Letters Patent blo-364,901, dated June 14, 1887.

' Application liled July 14, 1886. Serial No. 208,006.- (Nc model.)

To LZZ whom it may concern: Beit known that I, SYLvEsTnR B. CoM- STOCK, acitizen of the United States, residing at Providencc,in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Adjustable Sliding Screens; and I do hereby declare thefolvlowing to be a full, clear,and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification. This invention relates to windowscreens, especially that class which are adjustable, whereby the same screen may be employed in and fitted to Windows of varying sizes, while it is so mounted as to be capable of being actuated in vertical paths of movement. This feature is particularly desirable in the event of its being necessary to close or open a blind, or when free access through the window for any cause is required.

My improvements relate to the manner of constructing the screen and in the position thereof with respect to the window frame and sash; furthermore, in the manner of mounting said screen upon pivotal supports which are readily removable. All these parts will be more particularly hereinafter described.

The drawings accompanying this specification represent, in Figure l, a front elevation of a window provided with a windowscreen embodying my improvements. Fig. 2 isavertical transverse section on line y y, while Fig.

D represents an adjustable window-screen' composed of a screen, S, of fixed dimensions, made of the pieces or rectangular strips a a b b', preferably of wood for lightness. This screen upon its front side, or-that adjacent t0 the sash, is covered with ne wire-cloth.

To prov-ide for lateral adj ustment to t windows of varying sizes, I employ two extension or adjustable screens, E F, which are removably and adj ustably secured upon the sides of the screen S. These movable screens are composed of the upright strips c d and the horizontal ones, e cff. These parts are disposed vertically above and below the corresponding ones, c a', which form in part the screen S, overlap the same and slide thereon when the screen D is to be made wider or narrower. Thus it will be readily seen that when the wire-cloth t is attached to the front side of the frame of f the screen D a smooth surface f an active Vposition with the wire-cloth resting against the inside face of the window-sash, it will be evident that the latter may be left in any desired position,'partially open, without any possibility of admitting flies or other insects,which now frequently occurs. Two rectangular metal sleeves, G G', are furthermore secured lu'ponthe strips ct a', and permit of the introduction or withdrawal of the movable pieces e e f f,while the exterior dimensions of such sleeves G G coincide with the Aextreme height of the screen D. After proper adjustf ment the latter is rendered temporarily a tix' ture by means of the clamping-bolts g g,which are secured to and move with the extensionscreens E F in slots cut in the parts h h. latter are continuations or extremities of the strips a c', and are allowed to extend and lap upon the strips e cff, in order to render the screen D, as an entirety, more tirmand rigid and prevent its twisting or skewing when in an extended position.

In the event of contracting the screen, or to make its dimension in width less than that shown in Fig. 4, the ends hh of the pieces a ct are cut off, and in some instances it may become necessary to shorten the extremities of the pieces c e' f f. On the other hand, to enlarge the said screen D, thev bolts g g are loosened, the screens E F are pulled apart to the desired extent, when the bolts are again screwed down and the operation is completed.

To enable the screen D to be actuated in The vertical paths of movement, and to render the entire device readily removable and still eflicient in operation, I have secured upon the rear face of the uprights c dguide-rings i1', which loosely engage two vertically-disposed guiderods, kk. Theselatterare provided with hooks m m at their upper extremities, and are adapted to engage with eyebolts n a in the upper part of the window-frame. Thus they are readily detachable, since their lower' ends are free and rest upon the window-sill.

Very frequently window-frames are sprung, and in the event of the screen sliding closely thereon much difficulty occurs in moving the screen when it is desired; hence I have secured the guide-rods pivotally at the top, and when the screen is to be actuated up or down it is swung out and back until free from the window-frame, and when it is raised the desired extent then it is swung back and held there by close contact with the window-frame, or by means of a elamp,p, which is pivoted to the window-screen, and is provided with a wedge-shaped lip, q, (see Fig. 5,) adapted to enter between the screen and the guide-rods k 7c.

The special feature in this adjustable screen is providing an even surface of wire cloth or netting, which shall rest against the inside of the window-sash, while the hei ght of the screen shall be at least equal to the height of either of said sashes; hence it is immaterial in what position the window is left, no space exists between the sash and the wire-netting. Thus the entrance of flies and other insects is effcetually prevented. Furthermore, in the manner of operating the screen no injury occurs to the window-fra1nes, which in some instances is a very serious objection, while by making the pivotal guide-rods k k removable they can readily be disengaged from the eye-rings a n, and the entire device easily and quickly removed, and without leaving screw-holes or other marks of injury in the wood-work.

Presulning a window-screen of the construction above described is to be attached to and mounted in a window-frame, it rst must be adjusted thereto by releasing the set-screws g y, moving the extension-screens E F un'til they contact elosel y with the sides of the w1ndow-frame, when they are fixed in positlon by said set-screws. The guide-rods L It' are now engaged with the screw-eyes a n, prcvlously affixed in the frame, and the screen 1s then mounted on them by inserting the lower ends of said rods through the guide-rings t' t, said rods being swung out away from the sash 1n this operation.

I am aware that it is not broadly new to attach a window-screen to vertical rods by means of rings or eyes which allow said screen to be lnovcd up and down thereon, said rods being attached by eyes to the window-frame.

I am also aware that it is not broadly new to provide a window-screen with sliding endframes and overlapping sleeves or plates1n order that it may be extended endwise at will. This, also, I do not broadly claim.

I am well aware thatadj ustablc screens have been made; also, that sliding window-screens are in use; but

\Vhat I believe is novel and desire to claim l. The combination of thehorizonlal longitudinally-slotted bars It and their adjustingbolts with the wire-cloth t, the vertical stri ps b ed, the horizontal strip a a c cf f', and the sleeves D G, substantially as set forth.

2. A window-screen having eyes 1T, in conibination with rods la, having hooks m at their upper ends, and eyes a, withwhieh said hooks detaehably engage, for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

sYLvnsrnn B. coMs'rooK.

fitnessesz F. Gnarls, H. E. LODGE. 

